The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-00-616-6441, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-616-6441 |
| Primary Part Number | 6784837 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OVERALL |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Nut End Shank Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Length | 0.625 INCHES MINIMUM STUD THREAD IN |
| Thread Length | 0.660 INCHES MINIMUM NUT THREAD IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED AND STEPPED |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.438 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut End Shank Length | 2.400 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL |
| Distance Across Flats | 0.613 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Shoulder Length | 1.750 INCHES NOMINAL IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5307-00-616-6441 is a Stud,shouldered and Stepped, manufactured by Rolls-Royce Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-616-6441 has 2 manufacturer part numbers on file: 6784837 (General Motors Corp), 6784837 (Rolls-Royce Corporation).
Key specifications for 6784837: Surface Finish: 63.0 MICROINCHES OVERALL; Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Nut End Shank Diameter: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Thread Length: 0.625 INCHES MINIMUM STUD THREAD IN. 22 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.